Yes. You would be cheating yourself. The best way to learn is to practice and to learn from your mistakes. If there is a cost to making a mistake, you will be motivated to learn. You will learn nothing by using a DSLR this way it will become a crutch that you won't be able to do without. You will not develop the skills needed to assess exposure properly by using a DSLR in this way. You will not experience the satisfaction of having learned a skill and being able to apply it.
At the end of the day millions of people around the world have learned how to create images using cameras without computer aids. I'm one of them. If I can look at a scene and make creative decisions about how I want to photograph it and then do everything manually to create the image in the camera, you can too. There is no reason you can't join the people who have real photography skills instead of joining the crowd that doesn't. It's a matter of learning the basics and practice.
There are no short cuts to becoming expert at something. The price of success is failure. Failure is what success is built on, it is what success is based on. Taking a short cut to avoid failure is to sabotage the possibility of success.
using that logic, it's better to hoe a row of corne manually instead of using a plow or tractor. if you think that you learn better with a film camera than I do with my DSLR, think again. FYI, I had plenty of film camera, Canon A1, AE-1 A Minolta maxxum and Nikon F-1,100and N80. if anyhting my skill and knowledge has INCREASED because I'm not afraid to try the new and different. and I certainly would not be getting the astro images with a film camera i am with my D600.. no one can